Sunday, April 3, 2011

Classical decision making techniques: Using PMI

quote



“Thus the task is not so much to see what no one yet has seen,
but to think what nobody has yet thought about that which everybody sees.”



Schopenhauer




This technique is called 'Plus / Minus / Interesting' and can be thought of as an extension to the 'pros and cons' technique but with another column for 'Interesting'. We generally classify situations into "good" and "bad". This leaves us nowhere to identify things which are neither of these things. These could lead to new thinking. To satisfy our conventional thinking it is beneficial to classify the "good" and "bad" so that we can then can move on to thinking about the "interesting". This "interesting" category can contain ideas that just come to mind whilst you are thinking up the "good" and the "bad". You can also generate ideas for the "interesting" by looking at the "good" ideas and seeing if any of these ideas generate "interesting" ideas. The "bad" ideas can also be used in a similar way by using an "if this was not the case" provocation. The "interesting" ideas should not be evaluated but simply written down. Leave your evaluating for the "good" and the "bad".





The technique is an interesting way of combining your logical and creative thinking in a positive and productive way.



using the technique





  • On a piece of paper draw three columns with the words "Plus", "Minus" and "Interesting" at the top.


  • For the decision you are trying to make, write down words or phrases as they occur to you in the relevant columns.


  • If you are starting to feel stuck, stop, look at the "pluses" and see what "interesting" ideas these generate. Also look at the "minuses" and see what "interesting" ideas are generated. You may also like to try considering some interesting ideas and see if any new interesting ideas are generated.




strengths and weaknesses



We can extend this technique in similar ways that we extended the 'pros' and 'cons' technique. If we assume that 'all strengths are weaknesses, and all weaknesses are strengths' we can take each item in the 'pros' column and map it to three items in the 'cons' column and some items in the 'interesting' column. We can then do the same with the 'cons' and 'interesting' columns.



making your decision



You can evaluate your decision in the same way that you evaluated the results of the 'pros' and 'cons' technique, however the biggest strength of this technique is the fact that you have generated a number of items in the 'interesting' column. These may well give you some really good indications on the best decision to make.



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